Nut-lock



1. A. KIM BALL.

NUT L0 9 APPLicATwN FILE .4, 1920.

1,3733 35. Patented Mar. 29, 1921.

5M5. {I I Jom A.K1Lm baLl ATTORNEY WITNESS:

JOHN, A. KIYEYMABALLQ or ray nonvrnnn, ILLINOIS.

T 0 all whom it may concern I I Be it knowns'thatI, JOHNJA: KIMnhLL,ga citizen of the United States; residing fat Tayloryille, in the county of "Christian and- State of Illinois; have invented new fand useful Improvements in Nut-Locks,- of

which'thefollowing' is a specification;

' My present invention has "reference to a.

simple means for effectively locking anut on: a bolt to prevent the movementof the same in an unscrewing direction:

My primary object is to'p'rovide an ordinary 'castellated nut with means, surround ing the castellated' portion thereof'and pass ing through thecas'tellations which are engaged in notches or depressions in the bolton '5 which the nut is "screwed, the latter being necessity of providing the bolt with spaced provided with spaced depressions of a shape to permit of theelements carriedby the nutratcheting thereover when the nutis' being screwed home on the: bolt, and-to 'also engage with such elements to prevent the unscrewing of the nut on the bolt.

It is also my purpose to; provide the reduced castellated endof a nut with an annular groove in which is seated securing ineans carried-by a spring band that surrounds the said end of the nut, the band be in grooves provided in the threaded shank of the bolt with which the nut engages, the grooves providing each a straight wall and an angle wall extending therefrom which permits of the dogs or detents ratcheting over the angle walls whenthe nut is being" screwed home on the bolt but also causes the said detents or dogs to contact with the straight walls of. the grooves to prevent the unscrewing of the nut from the bolt.

A further object is the production of a castellated nut having removable spring means secured thereon for engaging w1th the walls of grooves 1n a bolt wherem the openings and theemployment of cotter pins that pass through the castellations of the nut and the openings of the bolt will'be dispensed with, so that the bolt will not be thus weakened, and also wherein the walls of the castellations on the nut provide supports or reinforcing means for the bolt engaging elements.

T s'p e lo Lawre e? mama Mari29,1921 h ncatibafiiea oct be 4,1920. Serial 1N0. 41 3423. I i

The foregoing, objects, and, others which will a-ppear as the nature. of the invention by construction; combinationand operative arrangement of parts, such as is illustrated by 'thegdrawings which accompany and -formpartof this application. 7 In the drawings: t Figure '1 Ban end view showing a-nut lockedon a bolt in accordance "with this in- Figs2isasi'de elevation thereof;

isbetter understoodymay be accomplished Fig. 3"is a sectional view approximately on the line -33'.ofFig. 1-, on an enlarged sion 2 provided with spaced slots or notches 3. This castellated endof the nut,'I provide, adjacent to the outer end thereof with substantially V-shaped depresan annular sionh I On large nuts, where the savingofmaterial is a consideration, the spring locking means, which I employ is ciated with the nuts.

-As disclosedby the drawings, I provide a stri of spring material which is stamped to form one of the edges thereotwith alternatingilongand short projections. The strip isthen brought to tubi-form, thus produc remo'valolyv assoing a band which is of a size to be snugly received over the castellated end of the nut.

This band is indicated by the numeral 5,"

the short fingers by'the numeral (3 and the a long fingers by the numeral 7. The long 4 fingers are ofa width approximately equalfingers may be brought out of the depressions, and consequently the locking means may be readily slidover the castellatedend of the nut. The longerfingers are bent ranged at an inclinationor otherwise bev eled, so that the active faces of the dogs are V-shaped in plan, as indicated by the'nu meral 10. The free ends of the dogs, that is with the under face of the-band 5, as indicated by the numeralll which materially strengthen the said dogs. As the edgesof the dogs, at the portions thereof which {are disposedin the castellations of the nut, contactwith the sidewalls prov-idedthereby a comparatively thin strap ,of spring metal may be employed in constructingjthe locking means. The nut is screwed on aboltlfZ. This bolt has its threaded shank provided with any desired number ofspaced gr'ooves. The grooves define straight walls 13. and angle walls 14. The grooves are so arranged that the angle active faces ofthe dogs will ratchet thereover when the nut is screwed home on the bolt; but the straight edges of the dogs will contact with the straight walls or shouldersl provided in the grooves of the bolt which will prevent theunsc-rewing of the nut from the bolt.

Having "thus described the invention, what Iclain1,is: x- 1. The combination, a bolt having its threaded shank provided with longitudinal V- shaped grooves, a nut having a castellated "groove of thenut for holding the band on g I the nut, fingers formedon one of the edges at the rounded portions thereof may contact in the groovesofithebolt, and said :dogs

ranged on the' said end"of the nut, elements integrally formed with the band entering the of the band passing through thee-a ain? tions v ofi the nut and rounded upon themselves to "provide dogs'that have their ends a 1 contacting with the innerface of v the jband and their active faces arranged at ang angle 46 j; i

whereby the said dogsirnay ratchet overithe groovesof the bolt when the nut is screwed T homeon the bolt andEalso whereby l the straight ends of r the dogs will contact-with the straight walls ofthe, grooves'to pre b 2' f; l V rm 2. In combination, agrooved bolt'and a castellated nutlscrewed thereon a band sur j a 55 rounding'the nut at the outer midi-thereof, cofengf gingmeans between the band and" nut for holding the vfornf er on the latter,

spring dogsintegrallyformed 011. one ct the is edges ofthe band -rounded upon themselves received in the; mane-ans ofyth e nut. and

when in one position having their freejends in contacting engagement yviththebandd n a a In testimony whereof I afiix-my signature;

s vent thBYUIlSCI'BWIDg ofTthe nut frorngthe 

